US3758579A - Alpha-bromoacrylic acid toluidides - Google Patents

Alpha-bromoacrylic acid toluidides Download PDF

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Publication number
US3758579A
US3758579A US00166575A US3758579DA US3758579A US 3758579 A US3758579 A US 3758579A US 00166575 A US00166575 A US 00166575A US 3758579D A US3758579D A US 3758579DA US 3758579 A US3758579 A US 3758579A
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United States
Prior art keywords
acid
formula
fruit
alpha
toluidides
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Expired - Lifetime
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US00166575A
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English (en)
Inventor
H Martin
G Pissiotas
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Novartis AG
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Ciba Geigy AG
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides

Definitions

  • ABSTRACT a-Bromo-acrylic-acid-anilides which are substituted in the phenyl nucleus by at least one substituent have been found to be effective compounds for influencing the plant development. They may be used for'reg ulating fruit abscission.
  • the invention relates to new anilides, their manufacture and their use as active substances in agents for regulating plant development.
  • the new anilides correspond to the formula 'R,, R, and R possess straight-chain or branched alkyl radicals.
  • these groups represent, for example, methyl, trifluoromethyl, ethyl, propyl, isopropyl, n-, iso-, sec.-, tert.- butyl, methoxy, ethoxy, allyloxy, methallyloxy, propargyloxy, isobutinyloxy.
  • R,,, R and R independently of one another may represent chlorine or C -C alkyl and R, and R may also represent hydrogen.
  • the anilides of the formula I can be manufactured by methods which are described in the literature, for example by reacting an aniline of the formula R3 (III) in which R R and R have the meanings given for the formula I, with an acid of the formula l lr (IV) or with a derivative thereof which is capable of forming an acid amide, in which one of the two substituents X and Y represents hydrogen and the other represents bromine, with the subsequent splitting off of one mol of HBr in the presence of a component acting as a base, or in which X and Y represent a further carbon-carbon bond.
  • the structural formula IV represents a-bromacrylic acid.
  • halides for example chlorides or bromides
  • hydrogen halide binding agents such as tertiary amines
  • an'hydrides It is also possible to react an acid of the formula IV with an aniline of the formula III in the presence of an agent which splits off water such, for example, as PCl,, POCI,, P o and the like.
  • Basic components used for splitting off hydrogen bromide are tertiary amines, such as triethylamine, pyridine, triethylenediamine etc; but alkali hydroxides, such as KOI-I or NaOI-I, are also used.
  • One of the possible methods of manufacturing compounds of the formula I consists in reacting acrylic chloride or acrylic bromine with an aniline of the formula III in the presence of triethylamine in an inert solvent and the subsequent addition of bromine to the resulting acrylic acid anilide in a solvent such as glacial acetic acid to form the aB-dibromopropionic acid anilide of the formula V in which R R, and R have the meanings given for the formula I, and from which the desired final product is obtained by splitting off one mol of I-Ibr.
  • a further possible method of manufacture consists in similarly reacting an aniline of the formula III with a, a-dibromopropionic acid, which is obtained by the bromination of propionic acid, or with a derivative thereof which is capable of forming an acid amide, and subsequently splitting off one mole of HBr under the conditions described above.
  • the compounds of the formula I are suitable for regulating the abscission of fruit, that is to say, by applying then to fruit shortly before it ripens, the harvesting of the entire fruit crop can be determined (within a slight range of fluctuation) for a certain definite time.
  • This measure constributes not only to the rational harvesting of large-scale fruit cultivations and which to an increasing extent is carried out by mechanical means, but above all lightens the force that is applied to pick or shake the fruit. This means that mechanical damage to the plant, for example the fruit tree, is reduced to a minimum. Damage to young shoots, which may reduce the yield the following year, is largely ruled out.
  • Active substances of the formula I are used primarily for stone fruit and pomaceous fruit, for example for fruit trees such as apple, pear, damson, peach, apricot, olive, citrus fruit, nut and also cherry; but partly too for ripening berries (red currants, gooseberries, grapes etc.)
  • the active substances of the formula I can be used as pure concentrate or together with suitable carriers and/or other additives.
  • Suitable carriers additives may be solid or liquid and correspond to the substances convertionally used in formulation technique such, for example, as natural or regenerated mineral substances, solvents, dispersants, wetting agents, adhesives, thickeners or binders.
  • These agents can be applied by spraying the plants with an aqueous solution or dispersion which contains the active substances according to the invention in concentrations of to 3,000 ppm (parts per million).
  • solvents may be used, especially alcohols, for example ethanol or isopropanol; ketones, such as acetone or cyclohexanone; aliphatic hydrocarbons, for example kerosene; and cyclic hydrocarbons, such as benzene, toluene, xylene, tetrahydronaphthalene, alkylated naphthalenes; in addition, chlorinated hydrocarbons, such as tetrachloroethane, ethylene chloride; and finally also mineral and vegetable oils or mixtures of the above mentioned substances.
  • alcohols for example ethanol or isopropanol
  • ketones such as acetone or cyclohexanone
  • aliphatic hydrocarbons for example kerosene
  • cyclic hydrocarbons such as benzene, toluene, xylene, tetrahydronaphthalene, alkylated naphthalenes
  • chlorinated hydrocarbons such as
  • the aqueous preparations are dispersions.
  • the active substances are homogenised in water as such or in one of the above mentioned solvents, preferably using dispersants.
  • Suitable cationic dispersants are, for example, quaternary ammonium compounds;
  • anionic dispersants are, for example, soaps, aliphatic long-chain sulphuric acid monoester, aliphatic-aromatic sulphonic acids, long-chain alkoxyacetic acids;
  • non-ionic dispersants are polyglycol ethers of fatty alcohols or p-tert.- alkylphenols with ethylene oxide.
  • concentrates consisting of active substance, dispersant and, if desired, solvent. Such concentrates can be diluted before use, for example with water, and are then in the form of emulsions or suspersions.
  • Dusts can be manufactured by mixing or conjointly grinding the active substance with a solid carrier, by which there may also be understood microgranules.
  • solid carriers are, for example; talcum, diatomaceous earth, kaolin, bentonite, calcium carbonate, boric acid, tricalcium phosphate, also saw dust, cork powder, charcoal, and other materials of vegetable origin.
  • wetting agents and protective colloids By adding wetting agents and protective colloids, pulverulent preparations and pastes may be made suspendib'le in water and used as sprays.
  • the content of active substance in the above described agents is between 0.l to 95 percent; and in this connection it should be mentioned that when applied from an aircraft or by some other suitable means of application, concentrations of up to 99.5 percent or commercially pure active substance may be used.
  • the new agents containing active substances of the formula I may also contain further pesticidal compounds and/or further compounds which exert a,favourable influence on plant morphology or plant development.
  • EXAMPLE l a 96 Grams of p-toluidine were dissolved in 300 ml of chloroform and the solution was treated with 43.5 g of pyridine. 250.5 Grams of aB-dibromopropionic acid chloride were added dropwise at 30-45 C. After being stirred for 14 hours at room temperature, the reaction mixture was rinsed twice with water, in the process of which a precipitate formed. 275 Grams of crude product of the formula Br Br were obtained, which after recrystallisation from chloroform melted at l46l48 C.
  • active substance 20 parts of highlyadsorptive silica 25 parts of bolus alba (kaolin) l .5 parts of sodium benzimidazole-6,3 '-di-sulphate 3,5 parts of a reaction product of p-tert.octylphenol and ethylene oxide.
  • Emulsion concentrate Readily soluble active substances were formulated also as emulsion concentrate according to the following prescription:
  • a sprayable emulsion was obtained by diluting the mixture with water to the desired concentration.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US00166575A 1970-07-31 1971-07-27 Alpha-bromoacrylic acid toluidides Expired - Lifetime US3758579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1158970A CH536594A (de) 1970-07-31 1970-07-31 Mittel zur Regulierung der Fruchtabszission

Publications (1)

Publication Number Publication Date
US3758579A true US3758579A (en) 1973-09-11

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ID=4374937

Family Applications (1)

Application Number Title Priority Date Filing Date
US00166575A Expired - Lifetime US3758579A (en) 1970-07-31 1971-07-27 Alpha-bromoacrylic acid toluidides

Country Status (15)

Country Link
US (1) US3758579A (cs)
AT (1) AT312985B (cs)
AU (1) AU3173971A (cs)
BE (1) BE770742A (cs)
BR (1) BR7104878D0 (cs)
CH (1) CH536594A (cs)
DD (1) DD102053A5 (cs)
DE (1) DE2138306A1 (cs)
FR (1) FR2099395A5 (cs)
GB (1) GB1316927A (cs)
HU (1) HU162560B (cs)
IL (1) IL37388A (cs)
IT (1) IT943522B (cs)
NL (1) NL7110594A (cs)
ZA (1) ZA715101B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867446A (en) * 1973-05-30 1975-02-18 Eszakmagyar Vegyimuevek Process for the preparation of substituted chloroacetanilides
US4149874A (en) * 1977-06-21 1979-04-17 Stauffer Chemical Company Substituted cyclopropylmethoxy anilides and their use as herbicides
US4230483A (en) * 1977-06-21 1980-10-28 Stauffer Chemical Company Substituted cyclopropylmethoxy phenyl carbamates and thiocarbamates and their use as herbicides
US4356026A (en) * 1977-06-21 1982-10-26 Stauffer Chemical Company Substituted cyclopropylmethoxy phenyl ureas and their use as herbicides
USH327H (en) 1982-02-16 1987-09-01 Fmc Corporation Nematicidal alkenanilides
US4950301A (en) * 1984-09-14 1990-08-21 Wool Development International Limited Keratinous textile treatment with arylating compounds containing fibre reactive groups
US20080249213A1 (en) * 2005-03-09 2008-10-09 Kolon Industries, Inc. Thermoplastic Polyetherester Elastomer Composition Having Excellent Flex Elasticity and Cover For Air-Bag Device Thereby
WO2012099310A1 (ko) 2011-01-20 2012-07-26 코오롱플라스틱 주식회사 열가소성 폴리에테르에스테르 엘라스토머 수지 조성물 및 이로부터 제조된 탄성 모노 필라멘트

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3373810D1 (de) * 1982-07-27 1987-10-29 Sumitomo Chemical Co Fungicidal anilides

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957800A (en) * 1956-12-14 1960-10-25 Spencer Chem Co Nematocidal composition comprising amides of dihalopropionic acids
CH484871A (de) * 1966-06-29 1970-01-31 Mundipharma Ag Verfahren zur Herstellung neuer Anilidderivate
US3538153A (en) * 1967-02-23 1970-11-03 Gaf Corp 2,3-dihaloacrylanilides
US3657340A (en) * 1969-01-31 1972-04-18 Dow Chemical Co Process for preparing substituted beta-haloacrylamides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957800A (en) * 1956-12-14 1960-10-25 Spencer Chem Co Nematocidal composition comprising amides of dihalopropionic acids
CH484871A (de) * 1966-06-29 1970-01-31 Mundipharma Ag Verfahren zur Herstellung neuer Anilidderivate
US3538153A (en) * 1967-02-23 1970-11-03 Gaf Corp 2,3-dihaloacrylanilides
US3657340A (en) * 1969-01-31 1972-04-18 Dow Chemical Co Process for preparing substituted beta-haloacrylamides

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Golovyashkina, Chem. Abstracts, Vol. 69, item 106164 (1968). *
Knunpants et al., Zh Obshch. Khim., Vol. 32, p. 1262 1274, (1962). *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867446A (en) * 1973-05-30 1975-02-18 Eszakmagyar Vegyimuevek Process for the preparation of substituted chloroacetanilides
US4149874A (en) * 1977-06-21 1979-04-17 Stauffer Chemical Company Substituted cyclopropylmethoxy anilides and their use as herbicides
US4230483A (en) * 1977-06-21 1980-10-28 Stauffer Chemical Company Substituted cyclopropylmethoxy phenyl carbamates and thiocarbamates and their use as herbicides
US4356026A (en) * 1977-06-21 1982-10-26 Stauffer Chemical Company Substituted cyclopropylmethoxy phenyl ureas and their use as herbicides
USH327H (en) 1982-02-16 1987-09-01 Fmc Corporation Nematicidal alkenanilides
US4950301A (en) * 1984-09-14 1990-08-21 Wool Development International Limited Keratinous textile treatment with arylating compounds containing fibre reactive groups
US20080249213A1 (en) * 2005-03-09 2008-10-09 Kolon Industries, Inc. Thermoplastic Polyetherester Elastomer Composition Having Excellent Flex Elasticity and Cover For Air-Bag Device Thereby
WO2012099310A1 (ko) 2011-01-20 2012-07-26 코오롱플라스틱 주식회사 열가소성 폴리에테르에스테르 엘라스토머 수지 조성물 및 이로부터 제조된 탄성 모노 필라멘트

Also Published As

Publication number Publication date
IT943522B (it) 1973-04-10
AT312985B (de) 1974-01-25
CH536594A (de) 1973-05-15
BR7104878D0 (pt) 1973-03-08
HU162560B (cs) 1973-03-28
FR2099395A5 (cs) 1972-03-10
NL7110594A (cs) 1972-02-02
AU3173971A (en) 1973-02-01
ZA715101B (en) 1972-04-26
GB1316927A (en) 1973-05-16
DD102053A5 (cs) 1973-12-05
DE2138306A1 (cs) 1972-02-10
IL37388A0 (en) 1971-10-20
BE770742A (fr) 1972-01-31
IL37388A (en) 1975-05-22

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